In 2007, Fall Creek Baptist Church in Indianapolis attempted to charge for a Super Bowl party to be held in a church building. The NFL called a flag on the play and the party was scrapped. This may seem particularly draconian, but it's all part of the old adage "If we let one person do it, then we have to let everyone do it." So today it could be a church, tomorrow it could be someplace bigger. The NFL has clarified some of the rules regarding churches and Super Bowl parties since then. For instance, churches can hold viewing parties, but they can't charge admission, though they can take up a collection to defray costs. They can even refer to the event as a "Super Bowl" party but they can't use any NFL or Super Bowl logos.

Bars and other businesses can show the Super Bowl on TV, says Anderson, but they can't promote that they're showing the game with the intention of having people come and buy food, because that's using the Super Bowl name to earn revenue. (Hence the workarounds, like the tweet below.) They also can't charge admission to view the game.

"The NFL wants to make sure they keep their sponsorships the way they want to control who has use of the phrase," says Anderson. "That way people can know what's directly connected to the NFL and their product." Trademark infringement occurs when someone uses a trademarked term (like "Super Bowl" ) in a way that may cause a person to wrongly infer an official connection between the company the trademark belongs to and the product advertised.

So, would HowStuffWorks get sued for using the phrase in this very article? Not so fast. Journalists can use the phrase as it falls under fair use laws. "Nominative fair use" essentially states that copyrighted material can be used for certain purposes — criticism, teaching and news reporting — when there is no better way to refer to the term in question and it's not being used in a commercial sense. So, because we're reporting on the Super Bowl, there's no issue. But if we were to try to do a giveaway for the game, we'd have to write something like, "Win a Free Cookie for the Big NFL Championship Game" instead.